Crystal Castle Portal found in M27 boiler.

This was the weirdest scale I’ve ever encountered. I kept it in a bucket in hopes of analyzing it one day. Melted nicely but was in all the tubing. The heat exchangers were filled with sand. Within about 4 days this beauty came back to life. Changed one of the vibration pumps and a bunch of gaskets. Cimbali M27, this machine likes to be repaired!